Are there any codeplex or 3rd party free tool for security tool? I need to run this on several sites and I dont have ample time to create a powershell script for this. Thanks in advance.
The SharePoint Admin Toolkit has some nice permissions reporting in to too, like checking effective permissions. Very useful.
SharePoint Sushi - http://www.codeplex.com/sushi has security reporting. Details here - http://sushi.codeplex.com/wikipage?title=Security%20Reports
Not clear if you are after something for MOSS 2007 or SharePoint 2010 but have a look at this site and the PowerShell script:
Have a look at this tool, only issue is it will run on one site at a time.